Phase 3 | Session 1| Biostatistics Essentials (Descriptive Statistics) | Dr.Mohamed Magdy

Topic: Biostatistics Essentials – Descriptive Statistics Instructor: Mohamed Magdy (Under supervision of Dr. Mostafa Assem) Description: This session is the first of Phase 3, Day 1 of the Qabas Research Course, focusing on the fundamentals of Descriptive Statistics, a core component of biostatistics. Mohamed Magdy, under the guidance of Dr. Mostafa Assem, walks participants through: • Key concepts and types of descriptive statistics • Measures of central tendency and variability • Data visualization techniques for clear interpretation • Common pitfalls and how to avoid misrepresentation of data By the end of this session, learners will have the practical understanding needed to summarize and describe data effectively for research and analysis. Materials & Resources: All shared materials are available on Telegram: search for @Qabas00000 Video Chapters: 00:00:00 - مقدمة وتعريف بالمرحلة الثالثة (Introduction) 00:02:25 - لماذا نتعلم الإحصاء الحيوي؟ وقصة ذواقة الشاي (Why Biostatistics?) 00:09:22 - تعريف الإحصاء الحيوي (What is Biostatistics?) 00:11:30 - فهم البيانات والمتغيرات (Data & Variables) 00:15:07 - أنواع المتغيرات: الرقمية والوصفية (Numerical vs. Categorical Variables) 00:20:55 - اختبار تفاعلي (Quiz) 00:23:41 - المتغير المستقل والتابع (Independent vs. Dependent Variables) 00:28:14 - الفرق بين الإحصاء الوصفي والاستنتاجي (Descriptive vs. Inferential Statistics) 00:31:33 - وصف البيانات النوعية (Frequency & Percentage) 00:35:28 - مقدمة في وصف البيانات الرقمية (Central Tendency & Dispersion) 00:37:51 - مقاييس النزعة المركزية (Mean, Median, Mode) 00:41:54 - تأثير القيم المتطرفة على المتوسط والوسيط (Outliers Effect) 00:47:39 - مقاييس التشتت (Measures of Dispersion) 00:50:58 - المدى الربيعي ومثال الشاورما (Interquartile Range - IQR) 00:56:55 - الانحراف المعياري (Standard Deviation) 01:01:43 - القاعدة التجريبية للتوزيع الطبيعي (The Empirical Rule: 68-95-99.7%) 01:17:35 - كيفية قراءة جدول البيانات الديموغرافية (Reading Demographic Tables) 01:29:18 - التوزيع الطبيعي والالتواء (Normal Distribution & Skewness) 01:32:43 - التمثيل البياني للبيانات (Graphical Representation: Pie, Bar, Histogram, Boxplot) 01:36:09 - تطبيق عملي على البيانات (Practical Demo: Excel & SPSS) 01:48:00 - الخاتمة والنصائح النهائية

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